Biology:Eusemius
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Eusemius is an extinct genus of prehistoric marine ray-finned fish, previously described as a macrosemiid, that lived during the Late Jurassic. It contains a single species, E. beatae, from the Tithonian-aged Eichstätt Formation of Germany.[1][2] It is known from a single very small specimen, likely a juvenile, that is likely now lost.[3] It closely resembles the co-occurring Ophiopsis and Ophiopsiella (which are now classified in the Ionoscopiformes), only differing in the non-bifurcated dorsal fin rays.[4][5]
See also
- Prehistoric fish
- List of prehistoric bony fish
References
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedsepkoskidb - ↑ "PBDB Taxon". https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=35198.
- ↑ Lambers, Paul H. (1999-06-01). "The actinopterygian fish fauna of the Late Kimmeridgian and Early Tithonian 'Plattenkalke' near Solnhofen (Bavaria, Germany): state of the art" (in en). Geologie en Mijnbouw 78 (2): 215–229. doi:10.1023/A:1003855831015. ISSN 1573-9708. https://link.springer.com/article/10.1023/A:1003855831015.
- ↑ Woodward, Arthur Smith (1895) (in en). Catalogue of the Fossil Fishes in the British Museum (Natural History). Taylor & Francis. https://www.google.com/books/edition/Catalogue_of_the_Fossil_Fishes_in_the_Br/ssngSQEhXd4C?.
- ↑ Lane, Jennifer A.; Ebert, Martin (2015-01-02). "A taxonomic reassessment of Ophiopsis (Halecomorphi, Ionoscopiformes), with a revision of Upper Jurassic species from the Solnhofen Archipelago, and a new genus of Ophiopsidae". Journal of Vertebrate Paleontology 35 (1). doi:10.1080/02724634.2014.883238. ISSN 0272-4634. https://www.tandfonline.com/doi/abs/10.1080/02724634.2014.883238.
Wikidata ☰ Q5414260 entry
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